发布求助
文献互助 智能选刊 最新文献

Chemie in Unserer Zeit最新文献

筛选
英文 中文
Tricks der Tiere und Pflanzen: Nieder mit dem Männerhormon 动物和植物的诡计：男性荷尔蒙下降
IF 0.6 4区 化学
Chemie in Unserer Zeit Pub Date : 2025-07-18 DOI: 10.1002/ciuz.202500009
Larissa Tetsch
{"title":"Tricks der Tiere und Pflanzen: Nieder mit dem Männerhormon","authors":"Larissa Tetsch","doi":"10.1002/ciuz.202500009","DOIUrl":"https://doi.org/10.1002/ciuz.202500009","url":null,"abstract":"<p>Testosteron ist bei männlichen Wirbeltieren für die Bildung von Spermien notwendig, fördert aber auch aggressives Balzverhalten. Beim Kampfläufer, einem Schnepfenvogel, gibt es drei „Männer-Typen“ mit unterschiedlichen Paarungsstrategien. Zwei von ihnen müssen ihren Testosteronspiegel niedrig halten und haben dafür eine originelle Lösung gefunden.</p>","PeriodicalId":9911,"journal":{"name":"Chemie in Unserer Zeit","volume":"59 4","pages":"188-189"},"PeriodicalIF":0.6,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144782848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Chemie im pharmazeutischen Kontext: Drugs, Pro- und Codrugs 药物化学：药物、辅助药物和辅助药物
IF 0.6 4区 化学
Chemie in Unserer Zeit Pub Date : 2025-07-14 DOI: 10.1002/ciuz.202400044
Matthias Ducci
{"title":"Chemie im pharmazeutischen Kontext: Drugs, Pro- und Codrugs","authors":"Matthias Ducci","doi":"10.1002/ciuz.202400044","DOIUrl":"https://doi.org/10.1002/ciuz.202400044","url":null,"abstract":"<div>\u0000 \u0000 <p>An important strategy for delivering pharmacologically active compounds to the desired site of action in the organism is the prodrug concept. Such drugs contain, for example, a precursor of the actual active ingredient or a compound masked by an added partial structure. In the organism, the prodrug is metabolized into a drug. This principle is explained using several examples. In addition, a suggestion is made as to how this topic can be implemented in chemistry lessons at upper secondary level.</p>\u0000 </div>","PeriodicalId":9911,"journal":{"name":"Chemie in Unserer Zeit","volume":"59 4","pages":"218-228"},"PeriodicalIF":0.6,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144782895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Chemieunterricht: Hoppla, ich wollte mal eben Chemie unterrichten! 化学课：哎呀，我本来想教化学的！
IF 0.6 4区 化学
Chemie in Unserer Zeit Pub Date : 2025-07-14 DOI: 10.1002/ciuz.202400030
Klaus Ruppersberg
{"title":"Chemieunterricht: Hoppla, ich wollte mal eben Chemie unterrichten!","authors":"Klaus Ruppersberg","doi":"10.1002/ciuz.202400030","DOIUrl":"https://doi.org/10.1002/ciuz.202400030","url":null,"abstract":"<p>Wie ist ein konstruktiver Umgang mit einer Fehlentwicklung in der Unterrichtslandschaft möglich?</p>","PeriodicalId":9911,"journal":{"name":"Chemie in Unserer Zeit","volume":"59 5","pages":"294-297"},"PeriodicalIF":0.6,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145243099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Eine Strukturformel an ungewöhnlichem Ort: Chemie in Stein gemeißelt 一个不寻常的地方的结构公式：石头上的化学雕刻
IF 0.6 4区 化学
Chemie in Unserer Zeit Pub Date : 2025-07-09 DOI: 10.1002/ciuz.202500018
Klaus Roth
{"title":"Eine Strukturformel an ungewöhnlichem Ort: Chemie in Stein gemeißelt","authors":"Klaus Roth","doi":"10.1002/ciuz.202500018","DOIUrl":"https://doi.org/10.1002/ciuz.202500018","url":null,"abstract":"<p>Wer den Alten St.-Matthäus-Kirchhof in Berlin-Schöneberg besucht, wird überrascht von der Vielfalt der Bestattungskultur einer multikulturellen Großstadt. Neben den bunt geschmückten Gräbern der Sternenkinder ruhen hier friedlich nebeneinander die Gebrüder Grimm, Rio Reiser, Rudolf Virchow, Harley-Davidson-Rocker und Mitglieder der Homosexuellen-Community. Chemieinteressierte Spaziergänger können das beeindruckende Grabmal des großen Chemikers und Mineralogen Eilhard Mitscherlich (1794-1863) bewundern, doch die größte Überraschung dürfte für sie ein Grabstein in der Nähe sein, in den die Strukturformel des Natriumsalzes der (RS)-2,3-Bis(sulfanyl)-propan-1-sulfonsäure eingemeißelt ist. Was mag sich dahinter verbergen?\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":9911,"journal":{"name":"Chemie in Unserer Zeit","volume":"59 4","pages":"198-203"},"PeriodicalIF":0.6,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144782340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Wasserstoffspeicherung mit CO2 und Derivaten 二氧化碳和衍生物的氢储存
IF 0.6 4区 化学
Chemie in Unserer Zeit Pub Date : 2025-07-09 DOI: 10.1002/ciuz.202400026
Carolin Amber Martina Stein, Henrik Junge, Matthias Beller
{"title":"Wasserstoffspeicherung mit CO2 und Derivaten","authors":"Carolin Amber Martina Stein,&nbsp;Henrik Junge,&nbsp;Matthias Beller","doi":"10.1002/ciuz.202400026","DOIUrl":"https://doi.org/10.1002/ciuz.202400026","url":null,"abstract":"<div>\u0000 \u0000 <p>The fight against global warming can only succeed by replacing fossil fuels with renewable energies. However, most renewable energy sources are intermittent and require storage concepts in order to have energy available at all times and in a predictable manner. In this context, chemical energy carriers, especially hydrogen, are important. Green hydrogen as an energy vector can be obtained simply by electrolysis of water and can be used universally. Hydrogen can be stored in other chemical compounds for storage and transportation. This reversibly converts the volatile gas hydrogen into a safer liquid or solid. In liquid or solid form, hydrogen can be stored safely and transported easily, as the existing energy infrastructure can continue to be used. Carbon dioxide and bicarbonate are interesting carrier surrogates as they are harmless, available in large quantities and inexpensive. The reaction with green hydrogen produces the hydrogen carriers formic acid and formate. Compared to other carriers, these have a lower hydrogen content, but are convincing due to their non-hazardous nature. This is particularly true for formates. If required, the stored hydrogen can be released from the carrier molecules with the help of suitable catalysts and used by reacting with oxygen in fuel cells or by combustion. The storage of green hydrogen utilizing CO<sub>2</sub> and bicarbonate can not only make energy supply safer and more efficient but also make the chemical industry greener.</p>\u0000 </div>","PeriodicalId":9911,"journal":{"name":"Chemie in Unserer Zeit","volume":"59 5","pages":"258-264"},"PeriodicalIF":0.6,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145242967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Das wertvolle Molekülarsenal einer alten Tiergruppe: Wunderwaffe Spinnengift 古老动物群的珍贵分子：蜘蛛毒的神奇武器
IF 0.6 4区 化学
Chemie in Unserer Zeit Pub Date : 2025-07-09 DOI: 10.1002/ciuz.202400034
Josephine Dresler, Andreas Vilcinskas, Tim Lüddecke
{"title":"Das wertvolle Molekülarsenal einer alten Tiergruppe: Wunderwaffe Spinnengift","authors":"Josephine Dresler,&nbsp;Andreas Vilcinskas,&nbsp;Tim Lüddecke","doi":"10.1002/ciuz.202400034","DOIUrl":"https://doi.org/10.1002/ciuz.202400034","url":null,"abstract":"<div>\u0000 \u0000 <p>Venoms are widespread in the animal kingdom. Among the venomous animals, spiders are the most successful representatives and produce the most complex venoms. Based on their large biodiversity it is estimated that spiders comprise about half of all venomous animal species. However, comparatively little is known about their venoms. The development of novel methods of systems biology and biotechnology has rendered the previous impediments in spider venom research. This has not only led to a broader understanding of their evolutionary ecology, but has also had a major translational impact. Valuable molecules derived from spider venoms have been identified and are already used in the bioeconomy, particularly in the fields of biomedicine and agriculture. Furthermore, recent work has shown, that a variety of enzymes can be isolated from spider venom with potential applications in various industrial sectors.</p>\u0000 </div>","PeriodicalId":9911,"journal":{"name":"Chemie in Unserer Zeit","volume":"59 4","pages":"190-197"},"PeriodicalIF":0.6,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144782502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Pilze – Vielseitige Giftmischer im Wald 森林里的蘑菇
IF 0.6 4区 化学
Chemie in Unserer Zeit Pub Date : 2025-06-26 DOI: 10.1002/ciuz.202300043
Karsten Strey
{"title":"Pilze – Vielseitige Giftmischer im Wald","authors":"Karsten Strey","doi":"10.1002/ciuz.202300043","DOIUrl":"https://doi.org/10.1002/ciuz.202300043","url":null,"abstract":"<div>\u0000 \u0000 <p>Basically, fungal poisonings can be divided into six groups, some with several subgroups. Fungal toxins may be cytotoxic, neurotoxic, or myotoxic, have specific metabolic, endocrine, or simple gastrointestinal effects, or cause allergic reactions. The structure of toxins is also diverse: rare amino acids, hydrazine derivates, azaridine rings, cyclopropenic acids, steroid derivates, heterocycles, macrocyclic trichothecenes, polysaccharides or octopeptides but also polypeptides with a molecular mass of more than 60.000 daltons can exert a toxic effect as a natural component of a fungus. Neither have all poisonous fungus been discovered yet, nor have all toxins of poisonous fungus been identified or the metabolism elucidated. In addition, there is still increased radioactivity in wild mushrooms today due to the Chernobyl nuclear accident in 1986. However, fungal toxins may play a role as psychotropic or cytostatic drugs in the future.</p>\u0000 </div>","PeriodicalId":9911,"journal":{"name":"Chemie in Unserer Zeit","volume":"59 4","pages":"204-217"},"PeriodicalIF":0.6,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144782822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Vulkanüberwachung mit Drohnen 无人机火山监测
IF 0.9 4区 化学
Chemie in Unserer Zeit Pub Date : 2025-06-05 DOI: 10.1002/ciuz.202570301
{"title":"Vulkanüberwachung mit Drohnen","authors":"","doi":"10.1002/ciuz.202570301","DOIUrl":"https://doi.org/10.1002/ciuz.202570301","url":null,"abstract":"<p><b>Drohnen in der Vulkanüberwachung</b></p><p>Vulkane emittieren nicht nur bei Ausbrüchen, sondern auch beim passiven Ausgasen verschiedene Gase. Ein prominentes Beispiel ist das Verhältnis von CO<sub>2</sub> / SO<sub>2</sub>, welches quasi einen Blick in das Erdinnere ermöglicht und bei der Vorhersage von Vulkanausbrüchen helfen kann. Doch auch in der Atmosphärenforschung spielen die Ausgasungen eine wichtige Rolle und tragen entscheidend zum Verständnis atmosphärischer Reaktionen und ihrer Auswirkungen bei. Dieser Bericht befasst sich mit der Messung dieser Gase durch den Einsatz ferngesteuerter Drohnen. Dabei werden verschiedene Messtechniken benutzt (online und offline), um unterschiedliche Gase mit möglichst hoher Präzision messen zu können.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":9911,"journal":{"name":"Chemie in Unserer Zeit","volume":"59 3","pages":""},"PeriodicalIF":0.9,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ciuz.202570301","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144219925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Inhalt: Chemie in unserer Zeit 3/2025 检索日期：2015-03-25。
IF 0.9 4区 化学
Chemie in Unserer Zeit Pub Date : 2025-06-05 DOI: 10.1002/ciuz.202570302
{"title":"Inhalt: Chemie in unserer Zeit 3/2025","authors":"","doi":"10.1002/ciuz.202570302","DOIUrl":"https://doi.org/10.1002/ciuz.202570302","url":null,"abstract":"","PeriodicalId":9911,"journal":{"name":"Chemie in Unserer Zeit","volume":"59 3","pages":"122-123"},"PeriodicalIF":0.9,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144220266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Versuche aus dem Küchenschrank: Colorem viridem facere. Grün machen. 厨房橱柜：彩色viridem facere。做绿色.
IF 0.9 4区 化学
Chemie in Unserer Zeit Pub Date : 2025-06-05 DOI: 10.1002/ciuz.202500004
Pitt Hild, Livia Murer, Markus Emden
{"title":"Versuche aus dem Küchenschrank: Colorem viridem facere. Grün machen.","authors":"Pitt Hild,&nbsp;Livia Murer,&nbsp;Markus Emden","doi":"10.1002/ciuz.202500004","DOIUrl":"https://doi.org/10.1002/ciuz.202500004","url":null,"abstract":"<p>Anliegen der in loser Folge erscheinenden Versuche ist es, Impulse für chemische Versuche zu geben, die mit haushaltsüblichen Gegenständen durchgeführt werden können. Die Versuche sind explizit nicht als Experimente im fachdidaktischen oder wissenschaftstheoretischen Sinn konzipiert, sondern sollen unter anderem durch Erzeugung einfacher naturwissenschaftlicher Phänomene eine positive Haltung gegenüber der Chemie wecken. Lehrpersonen öffnen sie Möglichkeiten, grundlegende chemische Zusammenhänge ohne teure Spezialchemikalien im Alltag aufzuzeigen. Nicht zuletzt sollen sie dazu anregen, unsere nächste Nähe stärker bezüglich ihrer chemischen Funktionen zu hinterfragen. Denn Chemie wirkt schließlich überall.</p>","PeriodicalId":9911,"journal":{"name":"Chemie in Unserer Zeit","volume":"59 3","pages":"174-177"},"PeriodicalIF":0.9,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144219926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信